The phrase "sacrificial lamb" refers to a person or thing that is used or offered as a sacrifice or victim to achieve a certain goal or outcome. Full definition
If women aren't being strung up as cultural sacrificial lambs for their decisions not to breastfeed then we have the constant brigade of alleged Mommy Wars to keep magazines afloat. (mommyish.com)
When it gets down to it, I doubt that Catholic parents will let their children become sacrificial lambs. (religion.blogs.cnn.com)
Young master Marcott's reputation & career as sacrificial lamb on the altar of the Great Devil Carbon is just collateral damage in the war to advance the Cause. (wattsupwiththat.com)